You don't want to do this, as it's a privacy violation. It will let attackers know all the names of all the other websites you are serving, just by looking at o

You don't want to do this, as it's a privacy violation. It will let attackers know all the names of all the other websites you are serving, just by looking at one of those website. Do you want people to know that your server for www.donaldtrumpisgreat.com/www.hillaryclintonisgreat.com is also serving your company's homepage?